Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 1 | # Copyright 2019-present Open Networking Foundation |
| 2 | # |
| 3 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | # you may not use this file except in compliance with the License. |
| 5 | # You may obtain a copy of the License at |
| 6 | # |
| 7 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | # |
| 9 | # Unless required by applicable law or agreed to in writing, software |
| 10 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | # See the License for the specific language governing permissions and |
| 13 | # limitations under the License. |
| 14 | |
| 15 | """ |
| 16 | Example AT&T workflow using Airflow |
| 17 | """ |
| 18 | import json |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 19 | import logging |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 20 | import airflow |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 21 | from datetime import datetime |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 22 | from airflow import DAG |
| 23 | from airflow import AirflowException |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 24 | from airflow.operators import PythonOperator |
| 25 | from cord_workflow_airflow_extensions.sensors import CORDEventSensor, CORDModelSensor |
| 26 | from cord_workflow_airflow_extensions.operators import CORDModelOperator |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 27 | |
| 28 | from att_helpers import * |
| 29 | from att_service_instance_funcs import * |
| 30 | |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 31 | |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 32 | args = { |
| 33 | 'start_date': datetime.utcnow(), |
| 34 | 'owner': 'ATT', |
| 35 | } |
| 36 | |
| 37 | dag_att = DAG( |
| 38 | dag_id='att_workflow_onu', |
| 39 | default_args=args, |
| 40 | # this dag will be triggered by external systems |
| 41 | schedule_interval=None, |
| 42 | ) |
| 43 | |
| 44 | dag_att.doc_md = __doc__ |
| 45 | |
| 46 | |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 47 | def ONU_event(model_accessor, message, **kwargs): |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 48 | #context = kwargs |
| 49 | #run_id = context['dag_run'].run_id |
| 50 | |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 51 | logging.info('onu.events: received event', message=message) |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 52 | |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 53 | si = find_or_create_att_si(model_accessor, logging, message) |
| 54 | if message['status'] == 'activated': |
| 55 | logging.info('onu.events: activated onu', message=message) |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 56 | si.no_sync = False |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 57 | si.uni_port_id = long(message['portNumber']) |
| 58 | si.of_dpid = message['deviceId'] |
| 59 | si.oper_onu_status = 'ENABLED' |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 60 | si.save_changed_fields(always_update_timestamp=True) |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 61 | elif message['status'] == 'disabled': |
| 62 | logging.info('onu.events: disabled onu, resetting the subscriber', value=message) |
| 63 | si.oper_onu_status = 'DISABLED' |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 64 | si.save_changed_fields(always_update_timestamp=True) |
| 65 | else: |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 66 | logging.warn('onu.events: Unknown status value: %s' % message['status'], value=message) |
| 67 | raise AirflowException('onu.events: Unknown status value: %s' % message['status'], value=message) |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 68 | |
| 69 | |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 70 | def AUTH_event(model_accessor, message, **kwargs): |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 71 | #context = kwargs |
| 72 | #run_id = context['dag_run'].run_id |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 73 | |
| 74 | logging.info('authentication.events: Got event for subscriber', message=message) |
| 75 | |
| 76 | si = find_or_create_att_si(model_accessor, logging, message) |
| 77 | logging.debug('authentication.events: Updating service instance', si=si) |
| 78 | si.authentication_state = message['authenticationState'] |
| 79 | si.save_changed_fields(always_update_timestamp=True) |
| 80 | |
| 81 | |
| 82 | def DHCP_event(model_accessor, message, **kwargs): |
| 83 | #context = kwargs |
| 84 | #run_id = context['dag_run'].run_id |
| 85 | |
| 86 | logging.info('dhcp.events: Got event for subscriber', message=message) |
| 87 | |
| 88 | si = find_or_create_att_si(model_accessor, logging, message) |
| 89 | logging.debug('dhcp.events: Updating service instance', si=si) |
| 90 | si.dhcp_state = message['messageType'] |
| 91 | si.ip_address = message['ipAddress'] |
| 92 | si.mac_address = message['macAddress'] |
| 93 | si.save_changed_fields(always_update_timestamp=True) |
| 94 | |
| 95 | |
| 96 | def DriverService_event(model_accessor, message, si, **kwargs): |
| 97 | #context = kwargs |
| 98 | #run_id = context['dag_run'].run_id |
| 99 | |
| 100 | event_type = message['event_type'] |
| 101 | |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 102 | go = False |
| 103 | if event_type == 'create': |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 104 | logging.debug('MODEL_POLICY: handle_create for AttWorkflowDriverServiceInstance %s ' % si.id) |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 105 | go = True |
| 106 | elif event_type == 'update': |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 107 | logging.debug('MODEL_POLICY: handle_update for AttWorkflowDriverServiceInstance %s ' % |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 108 | (si.id), onu_state=si.admin_onu_state, authentication_state=si.authentication_state) |
| 109 | go = True |
| 110 | elif event_type == 'delete': |
| 111 | pass |
| 112 | else: |
| 113 | pass |
| 114 | |
| 115 | if not go: |
| 116 | return |
| 117 | |
| 118 | # handle only create & update events |
| 119 | |
| 120 | # Changing ONU state can change auth state |
| 121 | # Changing auth state can change DHCP state |
| 122 | # So need to process in this order |
| 123 | process_onu_state(model_accessor, si) |
| 124 | process_auth_state(si) |
| 125 | process_dhcp_state(si) |
| 126 | |
| 127 | validate_states(si) |
| 128 | |
| 129 | # handling the subscriber status |
| 130 | # It's a combination of all the other states |
| 131 | subscriber = get_subscriber(model_accessor, si.serial_number) |
| 132 | if subscriber: |
| 133 | update_subscriber(model_accessor, subscriber, si) |
| 134 | |
| 135 | si.save_changed_fields() |
| 136 | |
| 137 | |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 138 | onu_event_sensor = CORDEventSensor( |
| 139 | task_id='onu_event_sensor', |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 140 | topic='onu.events', |
| 141 | key_field='serialNumber', |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 142 | controller_conn_id='local_cord_controller', |
| 143 | poke_interval=5, |
| 144 | dag=dag_att |
| 145 | ) |
| 146 | |
| 147 | onu_event_handler = CORDModelOperator( |
| 148 | task_id='onu_event_handler', |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 149 | python_callable=ONU_event, |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 150 | cord_event_sensor_task_id='onu_event_sensor', |
| 151 | dag=dag_att |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 152 | ) |
| 153 | |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 154 | auth_event_sensor = CORDEventSensor( |
| 155 | task_id='auth_event_sensor', |
| 156 | topic='authentication.events', |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 157 | key_field='serialNumber', |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 158 | controller_conn_id='local_cord_controller', |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 159 | poke_interval=5, |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 160 | dag=dag_att |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 161 | ) |
| 162 | |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 163 | auth_event_handler = CORDModelOperator( |
| 164 | task_id='auth_event_handler', |
| 165 | python_callable=AUTH_event, |
| 166 | cord_event_sensor_task_id='auth_event_sensor', |
| 167 | dag=dag_att |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 168 | ) |
| 169 | |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 170 | dhcp_event_sensor = CORDEventSensor( |
| 171 | task_id='dhcp_event_sensor', |
| 172 | topic='dhcp.events', |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 173 | key_field='serialNumber', |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 174 | controller_conn_id='local_cord_controller', |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 175 | poke_interval=5, |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 176 | dag=dag_att |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 177 | ) |
| 178 | |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 179 | dhcp_event_handler = CORDModelOperator( |
| 180 | task_id='dhcp_event_handler', |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 181 | python_callable=DHCP_event, |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 182 | cord_event_sensor_task_id='dhcp_event_sensor', |
| 183 | dag=dag_att |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 184 | ) |
| 185 | |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 186 | att_model_event_sensor1 = CORDModelSensor( |
| 187 | task_id='att_model_event_sensor1', |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 188 | model_name='AttWorkflowDriverServiceInstance', |
| 189 | key_field='serialNumber', |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 190 | controller_conn_id='local_cord_controller', |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 191 | poke_interval=5, |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 192 | dag=dag_att |
Illyoung Choi | 5d59ab6 | 2019-06-24 16:15:27 -0700 | [diff] [blame] | 193 | ) |
| 194 | |
Illyoung Choi | 2e97151 | 2019-07-18 14:15:19 -0700 | [diff] [blame^] | 195 | att_model_event_handler1 = CORDModelOperator( |
| 196 | task_id='att_model_event_handler1', |
| 197 | python_callable=DriverService_event, |
| 198 | cord_event_sensor_task_id='att_model_event_sensor1', |
| 199 | dag=dag_att |
| 200 | ) |
| 201 | |
| 202 | att_model_event_sensor2 = CORDModelSensor( |
| 203 | task_id='att_model_event_sensor2', |
| 204 | model_name='AttWorkflowDriverServiceInstance', |
| 205 | key_field='serialNumber', |
| 206 | controller_conn_id='local_cord_controller', |
| 207 | poke_interval=5, |
| 208 | dag=dag_att |
| 209 | ) |
| 210 | |
| 211 | att_model_event_handler2 = CORDModelOperator( |
| 212 | task_id='att_model_event_handler2', |
| 213 | python_callable=DriverService_event, |
| 214 | cord_event_sensor_task_id='att_model_event_sensor2', |
| 215 | dag=dag_att |
| 216 | ) |
| 217 | |
| 218 | att_model_event_sensor3 = CORDModelSensor( |
| 219 | task_id='att_model_event_sensor3', |
| 220 | model_name='AttWorkflowDriverServiceInstance', |
| 221 | key_field='serialNumber', |
| 222 | controller_conn_id='local_cord_controller', |
| 223 | poke_interval=5, |
| 224 | dag=dag_att |
| 225 | ) |
| 226 | |
| 227 | att_model_event_handler3 = CORDModelOperator( |
| 228 | task_id='att_model_event_handler3', |
| 229 | python_callable=DriverService_event, |
| 230 | cord_event_sensor_task_id='att_model_event_sensor3', |
| 231 | dag=dag_att |
| 232 | ) |
| 233 | |
| 234 | |
| 235 | onu_event_sensor >> onu_event_handler >> att_model_event_sensor1 >> att_model_event_handler1 >> \ |
| 236 | auth_event_sensor >> auth_event_handler >> att_model_event_sensor2 >> att_model_event_handler2 >> \ |
| 237 | dhcp_event_sensor >> dhcp_event_handler >> att_model_event_sensor3 >> att_model_event_handler3 |